Scm435 Steel
Processing Technology and Wear Resistance of SCM435 Steel Processing Technology : Cutting : SCM435 steel has certain hardness and strength. During cutting processing, appropriate cutting tools and cutting parameters need to be selected. Generally, carbide tools are used. Processing at a...
Description
Products Description
Chemical composition %
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | Cu(%) |
| 0.33-0.38 | 0.15-0.35 | 0.60-0.85 | ≦0.03 | ≦0.03 | 0.9-1.2 | 0.15-0.30 | ≦0.3 |
Quenched and tempered properties:
Yield strength of scm435 steel: 930MPa min
Tensile strength of scm435 steel: 1080MPa min
Elongation of 34CrMo4 steel: 12% min
Reduction area of scm435 steel: 50% min
Rockwell hardness of scm435 steel: 32HRC min
Brinell hardness of annealed scm435 steel: 217HB max
Drilling: Due to the high hardness of this steel, a high-torque high-speed electric spindle is needed for drilling. For example, using an electric spindle with a power of up to 1200W and a torque of up to 1N·m can successfully complete the drilling operation on SCM435 steel.
Heat treatment: SCM435 steel has good heat treatment performance. Different heat treatment processes can obtain different microstructures and properties. Common heat treatment processes include quenching and tempering. The quenching temperature is generally around 850°C and cooled in oil; the tempering temperature depends on specific requirements and is usually around 550°C, cooled in water or oil. For example, after quenching and high-temperature tempering (quenching and tempering treatment), SCM435 steel can obtain good comprehensive mechanical properties and is suitable for manufacturing parts that bear high loads, impacts, and operate at medium speeds.
Welding: The weldability of SCM435 steel is relatively poor. During welding, some special process measures need to be taken, such as selecting appropriate welding materials, preheating, and controlling welding parameters to prevent the occurrence of welding cracks and other defects.
Wear Resistance: SCM435 steel contains alloy elements such as chromium and molybdenum, which makes it have good wear resistance. Chromium can form a dense oxide film on the steel surface, improving the corrosion resistance and wear resistance of the steel; molybdenum can refine grains, improve the strength and toughness of the steel, and also help improve wear resistance. Therefore, SCM435 steel is often used to manufacture wear-resistant parts such as gears and bearings. In some working environments that need to withstand friction and wear, SCM435 steel can show good wear resistance and prolong the service life of parts. For example, in the transmission system of an automobile engine, gears made of SCM435 steel can work stably for a long time under high-speed operation and high-load conditions and maintain good wear resistance.
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